Riddle me this
Am I a function?
What's my function?
Fill in the blank
Scatter plots
What's my Domain?
100
What month of the year has 28 days?
All of them
100
In a function, how many outputs can one input have?
Each input has one and only one output.
100
For f(x) = 2x +1, find f(-3/2)
f(-3/2) = -2
100
A table of values for a function is given. Tell me if it's linear or nonlinear.
x -1 0 1
y 3 8 13
Linear!
100
Draw a scatter plot that has a linear, negative correlation.
Check student work
100
What is the domain of this function?
(-infty, infty)
200
What is cut on a table, but is never eaten?
A deck of cards
200
Yes
200
For f(x) = x2 + x + 1, find f(-5)
f(-5) = 21
200
A table of values for a linear function is given. Fill in the missing value.
x -1 0 1
y 3 -2 ?
y = -7
200
What is an outlier? Draw an example of an outlier.
Check student work.
200
What is the range of this function?
[-2, 4]
300
What has a head and a tail but no body?
A Coin
300
Is this a function and why?
No because x=8 has two outputs (3 and -3)
300
For f(x) = x2 - 2, find f(4/3)
f(4/3) = -2/9
300
A table of values for a linear function is given. Fill in the missing value.
x 1 3 5
y 2 1 ?
y = 0
300
Draw a graph that could be modeled using a positive linear equation
Check student work
300
Tell me the domain and range of this relation.
D: {-1, 1, 2, 4}
R: {-2, 1, 3}400
If there are three apples and you take away two, how many apples do you have?
You have two apples
400
Does the following table represent a function?
x y
1 2
2 5
6 2
2 9
5 1
No, because the input (x) of 2 has two different outputs (y)
400
For f(x) = 4x2 - 1, find f(-2)
f(-2) = 15
400
A table of values for a function is given. Decide if the function is linear or non-linear.
x -21 0 20
y -4 -7 -10
Non-linear!
400
Draw a scatter plot that has a weak negative correlation
Check Group Work
400
Tell me the domain and range for this function.
D: [-4, 5]
R: [-3, 5]
500
Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?
The letter “r”
500
No, vertical lines are not functions.
500
For f(x) = -x + 5, find f(-10)
f(-10) = 15
500
A table of values for a function is given. Fill in the missing value to make the function linear.
x 3 7 11
y -23 -55 ?
y = -87
500
What is a positive correlation? (Answer in your own words)
A positive correlation exists when one variable decreases as the other variable decreases, or one variable increases while the other increases.
500
Define domain and range.
Domain: The set (group) of all inputs for a function.
Range: The set (group) of all outputs for a function.